Needle-pressing means for knitting machines



K. HOWIE. NEEDLE PRESSJNG MEANS FOR KNITTING MACHINES.

APFUCATI'JN FILED JULY 23,1919.

Patented; Feb. EL 1922.

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NEEDLE PRESSING MEANS FOR KNITTING MACHINES. APPLICATION FILED JULY 23.1919.

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K. HOWIE. NEEDLE PRESSING MEANS FOR KNITTING MACHINES.

APPLICAHON FILED JULY 23,1919.

1AOZ68 Patented Feb. 2L 1922.

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KENNETH HOWIE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO WILDMAN MANUFACTURING COMPANY, OF NORRISTOWN, PENNSYLVANIA, A. CORPORA- TION OF PENNSYLVANIA.;

NEEDLE-PRESSING MEANS FOR KNITTING MACHINES.

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To all whom it may concern:

Be it known that I. KENNETH Howna, a.

.citizen of the United States, and resident of 'wh'en the presser cam is setin a certain pre- -scr1bcd posltion or positions will not be operative. on the specially formed pressers and hence the needles with which these pressers are associated will not have theirbeards pressed and will not cast off the old loop and therefore these needles will tuck.

The invention is shown in the acompanying drawing in which Fig. 1 represents a needle, a presser of ordinary form. and the cam for operating the presser; this cam being in section along a line to one side of thereof.

Fig.1 is a view similar to Fig. 1 but the the center or high part line upon which this section is taken passes loop.

a different form of presser.

through the center or high part of the cam and therefore this view shows the cam of greater width than Fig. 1. The needle is retracted partway in this figure and its beard is beingpressed.

Fig. 1" a. view similar to Fig. 1 but with the needle retracted and having cast its old The line' upon which the section throughthe cam is taken is at the low part thereof at the opp site end of the (rain from that shown in Fig. 1.. and hence the width of the cam in the, figure is the same asthat shown in Fig. 1.

Fig. 1 is a detail plan view of the cam in relation to a part of a row of pressers and needles.

Fig. 2- is a view similar to Fig. 1 but with Here, like in Fig. 1., the section of the cam is taken through its low part.

Fig. 2 is a sectional View through the retracted.

Fig. 2" 1s a sectional View also taken Specification of Letters Patent.

high oart of the cam the needle being artly- 1 i K P shown in Figures 1 and 2, the presser or Patented Feb. 21, 1922.

- Application filed July 23, 919. Serial No. 312,649.

through the high part of the cam with the needle fully retracted and forming a tuck Figs. 3, 3* and 3 are views similar to Figs. 2, 2 and 2", but with a different form of presser from either Fig. l or Fig. 2.

.In these drawings 1 indicates the needle carrier or cylinder, 2 springs beard needles of ordinary form and which are independently operated by any suitable cams as in ordinary practice. 3 indicates the pressers, there being one of these for each needle whose function it is to press the needle Ybeard when moved by its cam i into proper position to cause this pressing action to take place. Figure 1 represents the needle advanced to take the yarn. Figure 1 represents it partly retracted and with its beard pressed and Figure 1 represents the needle retracted, having cast oh? its old loop. For the pressing action the presser is moved by the high part of cam 4 inwardly towards the needle as shown in Figure 1 The cam acts on the outer edge of .the presser, and this edge of this particular presser is plain and afi'ords a bearing for the cam to work against. In Figures 2 to 3", however, the pressers are formed with cut away portions so that the cam will not act thereon to move the presser to its operative position so long as the cam is in line with the cut out part. In these Figures 2 to 2 the low part of the cam is shown in section in Fig. 2 and the high part in Figs. 2 2"; i

In Figure 2 the cut out treme upper outer corner of the presser leaving a space at 5, and when this form of presser comes opposite the high part of the presser cam Figs. 2 and 2 it will be operated thereby and hence the corresponding needle will not be pressed and will hold its art is at the ex old loop for making truck work. If, however, the presser cam is adjusted vertically to lie in a horizontal plane below the plane'ot the notch or space 5, the presser will be operated by the cam and plain Work will be produced on the corresponding needle. If, however, a presser or pressers like those shown in Figures 3, 3 and 3", be present in the same row with other pressers like those pressers of Figure 8 willnotbeoperatedby the I scribed design or pattern in plainand tuck lowered cam'and the corresponding needles will do tuck work while the other needles. controlled by the pressers of Figures 1 and 2 will be operated by the cam in this lowered position and thecorresponding needles will .do plain work. The presser of Figure 3, 3

and 3 itwill be noticed, is ci t'out, in a plane below the plane of the'cut out of the pressers shown in Figure 2, leaving an inknitting together with the pressers and needles of Figures 1, 131", but the pressers of Figures 2,2, 2 will not be operated because the out out at 5 will CEllSG these press-- ers tomiss the cam and tuck work on the needles of these pressers will be made.

As before pointed out, the cam in Fig. 3 is shown in section through its low-part and, in Figs. 3 and 3 it is shown in section through its high part. All the pressers shown may be arranged in the same needle row and pressers with other different locations of cut outs may be employed and grouped'according to the pattern desired, so that by raising and lowering the cam 4 to different levels it will have a selective action, operating certain of the pressers and missing others to give the pre- Work.

' The invention can be used in various types of machine such as hosiery machines or machines for making flat underwear.

The notches in the backs of the pressers are of a width measured vertically equal to the thickness of the presser cam so that this cam need be moved only a small distance to change its operativerelation to the presser.

I claim 1. In combination in a spring beard needle knitting machine, a row of spring beard needles, a series of upstanding pressers arranged in a row parallel with the row of needles, one of which pressers is arranged in front of each needle and having movement at its upper part towards and from the needle for performing the pressing actions,

and cam means, said cam means and row of .pressers having relative traversing movement in a'direction along the presserrow' and in said movement operating certain of the pressers and missing others, substantially as described.

arranged in front of each needle'a'nd having movement at their upper ends towards the 2; In combination in a spring beard needleknitting machine a rowof spring beard. v needles, a series of upstanding pressers, one

needle beards forpressing and cam means operating against certain of said pressers andv missing others, certain of saidpressers= having notches at their upper. ends, :to miss being pressed by tially as described.

the cam means, 'sjubstan '3. In combination in spring I knitting machine, a row/of spring-heard needles, a series of upstanding pressers, one

arranged in front of each needle andhavingmovement at their upper ends to the spring A beards for pressing; and cammeans operating against certain of Sald pressers and missing others, said cam means be ng ad usted to different horizontal planesito act at ti'm'eso'riz certain of the -pressersand at other timeson certain other pressers; substantially. 'a 's -.described. 1 f

4. In combination in a knittingniajchine, a row of spring beard needles, pressers arranged in a row parallel with the row of s rin beard needles one of said ressers' being arranged opposite each needle and.

movable towards and from the same for pressing, said pressers having different formations and cam means for operating the pressers, said cam means and row of pressers having relative traversing movement in .a direction along the presser row and said cam having movement to different horizontalplanes for operating certain of said pressers at times and other pressers at other times.

In testimony whereof, I afiix my signature.

KENNETH HOWIE. 

